278328213

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{18397}}^1$

素因数の和:18485

約数の個数: 18

約数和(自身を含む): 412096802

約数和(自身を除く): 133768589

約数列:

[1, 3, 9, 41, 123, 369, 1681, 5043, 15129, 18397, 55191, 165573, 754277, 2262831, 6788493, 30925357, 92776071, 278328213]

約数ペア:

[(1, 278328213), (3, 92776071), (9, 30925357), (41, 6788493), (123, 2262831), (369, 754277), (1681, 165573), (5043, 55191), (15129, 18397)]